Dishwashing machine



Nov. 26, 1935. H. E. MARSH, JR 2,021,962v

' 'DISHWASHING MACHINE Filed Jan. 25, 1954 2 Sheets-Sheet 1 INVENTOR Howard Mars/z -ATI'ORNEYS Nov. 26, 1935. H, E MAR H, JR' 2,021,962

DISHWASHING MACHINE Filed Jan. 25, 1934 2 Sheets-Sheet 2 I NVEN TOR Ham arc f. Mars/1 J/r ATTORNEY tions 12a and i211. The intermediate portion I20 Patented Nov. 26 1935 PATENT oar-ice 2,021,962 msnwasnma Macrame Howard E. Marsh, In, Ventura, CaliL, assignaof one-half to Henry J. Carlton, Lompoc, Calif.

Application January 2a, 1934, Serial No. 107,885

--2 owns. (01. 141-4)) The'invention relates generally to machines for the washing of. dishes, particularly machines of tlie type'in which the dishes or like articles are subjected to jets or sprays of water while disposed within a receptacle.

it is an object of the invention to provide a machine of the above character whichwill be simple to operate and relatively cheap to manuiacture.

It is a further object of the invention to provide a dish washing machine suitable for domestic use, which will operate upon ordinary city water supply pressure, without the use 9! a motor driven pump.. I

Further objects oi. the invention will appear from, the following description of-the preferred embodiment of the invention which has been set forth in detail in conjunction with the accom 'panying drawings.

Referring to the drawings:

Figure l isa plan view, showing a-inachine in-" corporatin'g the present invention.

Figure 2 is a side 'elevational view, in cross- .section, of the machine illustrated in Figure 1.,

Figure 3 is a detail taken along the 1ine ,3--3 of Figure 1.

Figure 4 is a plan detail, illustrating an arrangement of openings which can be utilizedin the nozzles of Fig. 3.

Figure 5 is a cross-sectional detail taken along the line 55 of Figurel.

.FigureG is a cross-sectional-detail of one of the rotary nozzles. 4 t

The machine as illustrated inthe drawings consistsof a receptacle Ill, formed of suitable material such as sheet metal. In this instance, the receptacle, as viewed in Figure 1, is oval in com, tour, although it is apparent that other shapes can be employed if desired. The receptacle is fitted with a removable dome-shaped cover II, which likewise can be formed of sheet metal;

Within the receptacle Iiithere is a dish rack designated generally as l2. While various materials can be utilized in the construction of this rack, it is desirous 'to employ lengths oi! wire 'joined by suitable weld connections. -As illustrated, the rack is formed of two distinct porforms an elevated, support ior cups, glasses and the like. It has been shown formed of parallel wires, secured'together at their ends, and connected 'to side portions 12b by the upright wires l 5. The two side portions |2b are at a lower elevation, and are provided with spaced parallel wires 13 and it, between which the lower edges tom wall 23. The upper oi." the plates can be accommodated. Wires l3 are provided with hooks It to engage the lower edges of the plates. The rack also includes av "pfiir oi foraminous cups l'|, mounted upon the.

sides of the intermediate portion i2a', and adapt- 5 .ed to receive articles of silver-ware, such as knives, forks, spoons and the like. c

In order to spray water upwardly from the, underside of intermediate portion Ha, I provide a pair of nozzle structures I8. A suitable construction for each of'these structures is. shownin Figure 3. As illustrated, each of the structures consists of a pair of tubes it, having their ends bent inwardly and journaled within suit- Qable glands 20a Glands 20 are carried by a T- coupling 2], which in turn is connected to a; water supply pipe 22 beneath the receptacle bot.-

ends of tubes ls are provided with suitable spray heads 24. 1 As illustrated in Figures 3 and 4, each-spray head consists of a cup provided with an end slot 26 and side slots 21. In order that the structures It may be caused to swing in unison, each structure is provided with a cross member and In addition to the nozzle structures [8, I provide a rotary nozzle structure 3|, which is mounted above the rack. As illustrated, this structure consists of a tube 32, having its intermediate por-- 30" tion connected to the upper end of an upstanding tubular shaft 33. Carried by the tube 32 are spray heads 34, which may be constructed as illustrated in Figure 6, and which are set at a suitable angleto cause rotation. Tubular shaft 85 33 is supported in vertical position by a journal I 35, which in turn is carried by the fixed arms 36.

. The lower end of the shaft is 'journaled within a suitable gland 3'! and is in communication with the lower water supply pipe 22. 7 Intermediate 40 the journal 35 and the gland 31, the shaft is propipe is connected to header pipe 4|, at one end of which is provided a suitable fitting 42 forattachment to a water supply hose. The other end of header ll is closed by a removable cap 43, to L permit introduction '01. soap or like ingredients to aid in the washing action. Water may drain from the receptacle through opening 44, I

' Operation of ray machine is as follows:

I the cover is placed upon the receptacle and hot water under city supply pressure is applied to the pipe 22. Jetting of water from the spray heads 34 causes rotation of tube 32, so that all of the articles carried by the rack are subjected to a downwardly directed washing spray. Rotation of shaft 33 together with tube 32' causes 12a, and also impinge laterally upon plates and the like carried by the outer rack portions lZb. While the washing proceeds, water collected within the receptacle is drained out' through opening 44. In the event soap is introduced with the first water, operation is permitted to proceed until the water is free of soap, to provide an adequate rinse. A

I claim:

i. In a dish washing machine, a receptacle, a

2,021,962 After dishes have been placed upon the rack l2,

dish rack carried within the receptacle, a spray nozzle mounted within the receptacle below said rack and adapted to have oscillatory movement, a reaction spray nozzle rotatably mounted above said rack, adapted to rotate upon application of water under pressure to the same, and mechanical means interconnecting said nozzles whereby rotation of said last-mentioned nozzle causes oscillatory movement of the first-mentioned nozzle. 0 2. In a dish washing machine, a receptacle, a dish rack carried within the receptacle, the intermediate portion of said rack being at a relatively higher elevation than the side portions thereof, nozzles mounted below the intermediate 15 portion of said rack, said nozzles being adapted to have oscillatory movement, a rotary liquid spray nozzle mounted above said rack, and mechanical means interconnecting said nozzles whereby upon rotation of the last-named nozzle 20 said first-named nozzles are caused to oscillate..

HOWARD E. MARSH, JR.

said last-mentioned nozzle being 5 

